Haynes new guide and motorists' complete road log of Yellowstone National Park . ANGEL TERRACE decay extending over a great length of time. The depositis building where overflowed by water^ and crumbling to achalky powder where dry. The water is heated by great masses of rock whichhave not yet cooled below the zone of percolating conditions are also seen today in New Zealand andIceland. Four factors are held responsible for the practicallycomplete precipitation of the lime carried by the waterto the surface; namely, (1) The eating^^ process ofthe algous growth which thrives in the h
Haynes new guide and motorists' complete road log of Yellowstone National Park . ANGEL TERRACE decay extending over a great length of time. The depositis building where overflowed by water^ and crumbling to achalky powder where dry. The water is heated by great masses of rock whichhave not yet cooled below the zone of percolating conditions are also seen today in New Zealand andIceland. Four factors are held responsible for the practicallycomplete precipitation of the lime carried by the waterto the surface; namely, (1) The eating^^ process ofthe algous growth which thrives in the hot water. (2)The giving off of carbonic acid to the air. (3) The cool-ing of the water and (4) Evaporation. The chief attraction of this great deposit is its beau-tiful coloring; harmonizing shades of yellow and brownwith occasional streaks of dark green and red character-ize the formation where the hotter water flows. The pre-dominating rust color is found in the tepid water further 44 HAYNES NEW GUIDE. travertine:- sano ano-rhyolite • Dakota(lime) gravel (lava) 5anq5tone: I . I . II TTT LAVAFLOWQ IGNEOUSBED(HOT) VM GEOLOGICAL PROFILE OF MAMMOTH HOT SPRINGS 10155 from the mouths of the hot springs. The abandoned por-tions of the deposit are a glaring chalk-white, the coloringsbeing present only on the active terraces. It is the algaethat color these terraces more beautifully than could nat-ural mineral coloring, or the hand of man; the algousgrowth—a low form of plant life—cleaves closely to therock in a velvet-like covering and requires hot or tepid wa-ter in which to live. ]^or are the pool colorings due to minerals; theUnited States Geological Survey states authoritatively,that these colors are due to the reflection and refractionof the light rays, influenced by the nature and color of thepool linings and their surroundings. Silver Gate and Hoodoos.—The driveway fromMammoth to Golden Gate ascends the mountain by sucheasy grades that one does not realize that a thous
Size: 2252px × 1110px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidhaynesnewgui, bookyear1922
